Bar Harbor, Maine, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Bar Harbor, Maine, United States
AQI Trends: Highest and Lowest
Same Day Analysis (7th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 33 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 7th Aug - 8th Aug 2026
Bar Harbor, Maine, United States
5 AM7th Aug 2026
8 PM
4 AM8th Aug 2026
39AQI
26AQI
43AQI
24AQI
In the last 24 hours,
Bar Harbor's AQI reached its highest point of 43 at 4 AM during the Night, while the lowest point, 24, was recorded at 8 PM during the Night between 7th Aug and 8th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Bar Harbor, Maine, United States
24°C19/28°C
22°C15/28°C
22°C14/29°C
21°C14/27°C
23°C17/30°C
25°C21/32°C
21°C16/29°C
20°C14/27°C
19°C14/25°C
20°C16/25°C
20°C14/27°C
19°C14/24°C
19°C17/22°C
20°C15/26°C
20°C13/27°C
19°C13/27°C
19°C12/27°C
19°C11/27°C
19°C13/25°C
17°C14/21°C
19°C17/23°C
21°C16/26°C
21°C16/28°C
20°C17/27°C
19°C17/21°C
23°C16/30°C
24°C18/32°C
25°C17/33°C
27°C21/34°C
22°C19/28°C
33AQI
27AQI
32AQI
27AQI
2026 Days Vs Air Quality
Bar Harbor, Maine, United States
97%
209
3%
7
Total number of days with different AQI categories in last 220 days in 2026 (145 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2026, 97% of 220 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Bar Harbor, Maine, United States
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
14AQI (US)
9AQI (US)
8AQI (US)
12AQI (US)
29AQI (US)
34AQI (US)
29AQI (US)
17AQI (US)
20AQI (US)
12AQI (US)
10AQI (US)
10AQI (US)
14AQI (US)
34AQI (US)
31AQI (US)
20AQI (US)
11AQI (US)
22AQI (US)
17AQI (US)
19AQI (US)
12AQI (US)
37AQI (US)
49AQI (US)
34AQI (US)
35AQI (US)
47AQI (US)
36AQI (US)
27AQI (US)
37AQI (US)
51AQI (US)
44AQI (US)
35AQI (US)
42AQI (US)
53AQI (US)
48AQI (US)
51AQI (US)
49AQI (US)
39AQI (US)
32AQI (US)
45AQI (US)
41AQI (US)
32AQI (US)
30AQI (US)
37AQI (US)
47AQI (US)
36AQI (US)
42AQI (US)
41AQI (US)
38AQI (US)
44AQI (US)
50AQI (US)
31AQI (US)
30AQI (US)
36AQI (US)
40AQI (US)
43AQI (US)
34AQI (US)
38AQI (US)
29AQI (US)
37AQI (US)
54AQI (US)
38AQI (US)
39AQI (US)
30AQI (US)
24AQI (US)
43AQI (US)
39AQI (US)
37AQI (US)
34AQI (US)
39AQI (US)
36AQI (US)
38AQI (US)
30AQI (US)
25AQI (US)
30AQI (US)
30AQI (US)
24AQI (US)
27AQI (US)
29AQI (US)
33AQI (US)
37AQI (US)
42AQI (US)
30AQI (US)
31AQI (US)
16AQI (US)
20AQI (US)
22AQI (US)
13AQI (US)
20AQI (US)
20AQI (US)
30AQI (US)
28AQI (US)
25AQI (US)
29AQI (US)
28AQI (US)
31AQI (US)
27AQI (US)
30AQI (US)
24AQI (US)
21AQI (US)
26AQI (US)
25AQI (US)
22AQI (US)
21AQI (US)
27AQI (US)
28AQI (US)
25AQI (US)
32AQI (US)
23AQI (US)
23AQI (US)
19AQI (US)
17AQI (US)
25AQI (US)
31AQI (US)
22AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
24AQI (US)
20AQI (US)
21AQI (US)
32AQI (US)
33AQI (US)
25AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
20AQI (US)
20AQI (US)
21AQI (US)
15AQI (US)
45AQI (US)
47AQI (US)
48AQI (US)
52AQI (US)
52AQI (US)
47AQI (US)
40AQI (US)
38AQI (US)
43AQI (US)
42AQI (US)
44AQI (US)
19AQI (US)
13AQI (US)
14AQI (US)
15AQI (US)
15AQI (US)
12AQI (US)
14AQI (US)
12AQI (US)
12AQI (US)
14AQI (US)
17AQI (US)
15AQI (US)
14AQI (US)
13AQI (US)
13AQI (US)
12AQI (US)
16AQI (US)
15AQI (US)
12AQI (US)
14AQI (US)
14AQI (US)
12AQI (US)
33AQI (US)
22AQI (US)
16AQI (US)
16AQI (US)
12AQI (US)
13AQI (US)
14AQI (US)
12AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
19AQI (US)
13AQI (US)
13AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
20AQI (US)
14AQI (US)
14AQI (US)
14AQI (US)
15AQI (US)
13AQI (US)
14AQI (US)
17AQI (US)
21AQI (US)
19AQI (US)
29AQI (US)
15AQI (US)
31AQI (US)
41AQI (US)
56AQI (US)
25AQI (US)
37AQI (US)
29AQI (US)
19AQI (US)
30AQI (US)
35AQI (US)
33AQI (US)
35AQI (US)
32AQI (US)
34AQI (US)
30AQI (US)
30AQI (US)
34AQI (US)
36AQI (US)
31AQI (US)
25AQI (US)
40AQI (US)
39AQI (US)
33AQI (US)
25AQI (US)
40AQI (US)
31AQI (US)
25AQI (US)
30AQI (US)
16AQI (US)
25AQI (US)
34AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
February40AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
202524AQI (US)
Highest AQI (US) recorded in
July38AQI (US)
Lowest AQI (US) recorded in
November17AQI (US)
202419AQI (US)
Highest AQI (US) recorded in
July26AQI (US)
Lowest AQI (US) recorded in
November16AQI (US)
202321AQI (US)
Highest AQI (US) recorded in
July27AQI (US)
Lowest AQI (US) recorded in
November16AQI (US)
202219AQI (US)
Highest AQI (US) recorded in
July32AQI (US)
Lowest AQI (US) recorded in
August14AQI (US)
202119AQI (US)
Highest AQI (US) recorded in
August28AQI (US)
Lowest AQI (US) recorded in
December14AQI (US)
202014AQI (US)
Highest AQI (US) recorded in
March18AQI (US)
Lowest AQI (US) recorded in
October12AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Bar Harbor's annual 2026 AQI (US) (28) shows an average percentage change of 48.6% (worsened AQI (US)) compared to previous years: 2020 (14), 2021 (19), 2022 (19), 2023 (21), 2024 (19), 2025 (24).